A new study analyzes the evolutionary history of 11 deep-sea species from environments stretching from the central Indian Ocean and the western Pacific Ocean and found that all species contained the ...

A recent deep-sea expedition into the Tonga Trench in the Pacific Ocean led to an astonishing discovery: a massive Pacific Sleeper Shark was filmed at an astounding 1,400 meters below the surface.

Narrator: The Mariana Trench is the deepest point on Earth ... are their best defense against something else lurking in the abyss. The Mariana snailfish, aka the deepest fish ever discovered ...

China and New Zealand have led the world’s first crewed expedition to the depths of the remote Puysegur Trench, which cleaves through the floor of the south Tasman Sea, in a mission hailed as a ...